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Science News Archive September 2002 - Page 3


Page 3 of 8

Mapping proteins

Researchers at Rensselaer Polytechnic Institute have developed a new approach to decoding the protein language by creating a 3-D image of each known protein and reducing it to a simpler 2-D representation, called a contact map. The data from the contact map is used to predict unknown proteins and novel protein formation.

Maize's starch pathway found limited

The study found limited genetic diversity in maize's starch pathway, making it harder to increase yields. To address this, researchers suggest incorporating genes from teosinte or using transgenics as alternative methods for improving crop diversity and productivity.

SourceNorth Carolina State University·JournalProceedings of the National Academy of Sciences·DateSep 23, 2002

The hours we work

Annualised hours contracts (AHCs) offer advantages for both companies and staff, including higher hourly wages, lower overtime, and stronger job security. AHCs are often implemented in volatile industries with complex shift systems, providing employees with flexibility over the working year.

Viagra for alleviation of pulmonary hypertension?

A randomized controlled trial found that sildenafil reduced pulmonary blood resistance, a key indicator of pulmonary hypertension. The study suggests sildenafil could be a promising candidate for long-term treatment of secondary pulmonary hypertension in lung fibrosis. Controlled trials are needed to confirm the findings.

SourceThe Lancet_DELETED·JournalThe Lancet·DateSep 19, 2002

Casket resurrects new vision of ancient Jerusalem

A Cincinnati ossuary has been discovered to feature a unique image of a massive Jerusalem tomb from the first century, associated with early Rabbi Hillel and Jesus of Nazareth. The ossuary's distinctive three pyramids have garnered attention from scholars, providing new insights into ancient Jerusalem's architecture.

SourceUniversity of Cincinnati·JournalJournal of Jewish Studies·DateSep 19, 2002

Researchers show why active mountains don't get taller

Active mountains, despite constant uplift, do not get taller because of erosion forces balancing uplift and sediment transport. Researchers found that river erosion rates closely match the rate at which rocks move up, with abrasion by suspended particles doing most of the down cutting.

SourcePenn State·JournalScience·DateSep 19, 2002

New role of genes in breast cancer

A recent study published in New England Journal of Medicine found that genetically identical twin pairs had similar breast densities, while non-identical pairs had breast densities about half as similar. This suggests that genetic factors play a major role in explaining why women of the same age have different breast density.

SourceUniversity of Melbourne·JournalNew England Journal of Medicine·DateSep 19, 2002

Will global warming improve crop production?

Climate change is expected to increase winter temperatures, leading to greater risks for perennial forage crops in Eastern Canada. The study used agro-climatic indices to analyze the effect of climate conditions on winter survival, finding increased risks due to warmer winters and reduced cold hardiness.

SourceAmerican Society of Agronomy·JournalAgronomy Journal·DateSep 18, 2002

'Sticky mittens' give babies a head start

Duke University psychologists found that infants who used 'sticky mittens' had more sophisticated abilities to explore objects and showed increased cross-sensory exploration. The study suggests that providing rich opportunities for infant learning is crucial for development.

SourceDuke University·JournalInfant Behavior and Development·DateSep 18, 2002